Method for transferring information printed on a clay-coated substrate to a transparent substrate for the purpose of making slides

ABSTRACT

A method of making slides using a transfer process including contacting a clay-coated image bearing surface with an adhesive coated transparent substrate, burnishing the image and the transparent substrate and separating the transparent substrate from the original image bearing surface whereby a transfer of the image to the substrate is accomplished which is suitable for conventional image projection.

United States Patent 1191 Molner 1 Feb. 12, 1974 METHOD FOR TRANSFERRING[56] References Cited INFORMATION PRINTED ON A UNITED STATES PATENTSCLAY'COATED SUBSTRATE To A 2,489,987 11/1949 Barnola 156/235 xTRANSPARENT SUBSTRATE FOR THE 3,350,254 10/1967 Morgan et a]. 156/235PURPOSE OF MAKING SLIDES 3,453,165 7/1969 lsbey et a1 156/235 Inventor:Donald Joseph Molner, Englishtown,

Assignee: Q. S. Industries, Inc., New York,

Filed: Feb. 19, 1971 Appl. No.: 1 16,861

U.S. Cl 156/235, l17/3.5, 156/230, 1S6/241,156/249,161/6, 161/406,161/413 Int. Cl. B32b 31/24, B440 1/16 Field of Search 117/3.1, 3.5;156/230, 234, 156/235, 236, 240, 241, 277, 249; 161/1, 2, 6, 406, 413

Primary ExaminerA1fred L. Leavitt Assistant ExaminerRobert A. DawsonAttorney, Agent, or FirmNatter & Natter [5 7] ABSTRACT A method ofmaking slides using a transfer process including contacting aclay-coated image bearing surface with an adhesive coated transparentsubstrate, burnishing the image and the transparent substrate andseparating the transparent substrate from the original image bearingsurface whereby a transfer of the image to the substrate is accomplishedwhich is suitable for conventional image projection.

4 Claims, 3 Drawing Figures INVENTOR.

DONALD J. MOLNER BY 7% M METHOD FOR TRANSFERRING INFORMATION PRINTED ONA CLAY-COATED SUBSTRATE TO A TRANSPARENT SUBSTRATE FOR THE PURPOSE OFMAKING SLIDES The present invention relates to a transfer process, andit particularly relates to a transfer process to produce slides suitablefor projection through the use of any standard photographic slideprojector.

It is the object of the invention to provide slides which can beproduced rapidly, safely, and economically, which involve no cameras,toxic chemicals, or copying machines in their production.

A further object of my invention is to provide a means whereby rapidlyprinted images can be easily processed into projection slides forviewing by large audiences without the time delay usually associatedwith photographic slide production.

Although the present invention will be particularly described in theapplication of standard 2 inch by 2 inch slides it is to be understoodthat it has a broad application to the transfer of printed matter toslides of various dimensions, as for example, in the transfer of printedinformation to 4 inch by inch slides.

In the past photographic slide production necessarily required the useof complex apparatus involving cameras, film, toxic developing andfixing solutions. An important advantage of the present invention is thecomplete elimination of photographic apparatus, fragile cameras andharmful and corrosive chemicals. This factor makes the processparticularly well suited for use by young children.

This invention relates to a method comprising (1) contacting aclay-coated image bearing surface with a transparent substrate which hasbeen previously coated with a transparent adhesive layer, (2) burnishingsaid image and transparent substrate to cause the image to adhere to thetransparent substrate, (3) wetting the composition with a liquid inwhich clay is soluble, 4) separating the transparent substrate from theoriginal image bearing surface whereby a transfer of the image isaccomplished, (5) placing the image bearing transparent substrate in asuitable holder or on a second transparent surface in preparation forprojection.

The original image bearing surface may be a page or portion of a page ina periodical, book, or other source of information printed in multiplecolors or in a single color on a clay-coated sheet. The sheet employedtherein may comprise any material through which water may penetratereadily but it preferably consists of paper.

The aforesaid transparent substrate may be a sheet or roll of acetate,cellophane, or any similar transparent paperlike product which can bepre-coated with a thin adhesive layer.

A complete understanding of the invention will be had from the followingdetailed description of a preferred manner of carrying it into effect.The accompanying drawing forms a part of that description.

FIG. 1 shows a clay-coated sheet 6 having thereon an image 7.

FIG. 2 shows a sheet of self-adhering transparent substrate 8 which hasbeen applied to the sheet 6 so as to cover image 7.

FIG. 3 shows the separation of the printed image 7 from the clay-coatedsheet 6 leaving said image on the adhesive surface of the transparentsubstrate 8. The

surface of the sheet 6 has been wet with a liquid (not shown) in whichthe clay coating is soluble. The sheet can be wet by any suitable meanssuch as by immersion,

wiping or spraying.

Any liquid in which clay is soluble is operative herein although aliquid which cannot be conveniently removed from the substrate surfaceor one which damages or dissolves the transparent substrate is notuseable. Water is the preferred Wetting agent since it is readilyavailable, nontoxic, odorless, and dries quickly.

A single liquid may be employed or a mixture of two or more liquids canbe used. For example, excellent results may be obtained when thecomposition is wet with a solution containing 50 percent alcohol and 50percent water.

At normal room temperature the liquid will release the image within a 2minute time period. The release can be accomplished at a wide range oftemperature above the freezing point and below the boiling point.

After the release occurs, a white, chalky residue will remain on theadhesive surface of the transparent substrate. This residue can beeasily removed by patting the surface with a wet sponge, cotton cloth orsimilar absorbent material.

When thoroughly dry the image bearing transparent substrate can bemounted and used in a projector without further processing although acoating of clear fixative (such as KRYLON No. 1303A, suppliedcommercially by the Borden Chemical Company), applied to the adhesivesurface, will provide permanent protection against scratches andfingerprints.

It should be understood that although the invention has been describedin connection with a process that is done by hand, this working can alsobe done mechanically. For example, a suitable machine could be employedin which a liquid is caused to contact the composition at one stationwhile a knife separates the printed image from the clay-coated sheet ata second station. I

I claim:

1. A method of transferring images which comprises contacting aclay-coated image bearing surface with a transparent substrate which hasbeen previously coated with a transparent pressure sensitive adhesivelayer,

rubbing the image bearing surface and transparent substrate to therebyburnish the image, and cause the image to adhere to the transparentsubstrate, wetting the clay-coated image bearing surface with a liquidin which the clay coating is soluble,

separating the image from the image bearing surface by disjoining theimage bearing surface from the pressure sensitive adhesive layer of thetransparent substrate whereby the image is transferred to thetransparent substrate,

removing the clay residue from the transparent substrate, and

contacting an adhesive-free supportive and protective surface with theimage-containing adhesive layer of the transparent substrate whereby theimage is in a condition suitable for conventional image projection.

2. A method of transferring images in accordance with claim 1 whereinwater is used as the liquid for wetting the clay-coated image bearingsurface.

3. A method of transferring images in accordance with claim 1 whereinthe adhesive free supportive and protective surface is transparent andfurther applying pressure to cause the transparent surface to adhere tothe transparent substrate.

4. A method of transferring images which comprises contacting aclay-coated image bearing surface with a transparent substrate which hasbeen previously coated with a transparent pressure sensitive adhesivelayer,

burnishing the image to the pressure sensitive adhesive layer of thetransparent substrate to cause the image to adhere to the transparentsubstrate,

wetting the clay-coated image bearing surface with a liquid in which theclay coating is soluble,

2. A method of transferring images in accordance with claim 1 whereinwater is used as the liquid for wetting the clay-coated image bearingsurface.
 3. A method of transferring images in accordance with claim 1wherein the adhesive free supportive and protective surface istransparent and further applying pressure to cause the transparentsurface to adhere to the transparent substrate.
 4. A method oftransferring images which comprises contacting a clay-coated imagebearing surface with a transparent substrate which has been previouslycoated with a transparent pressure sensitive adhesive layer, burnishingthe image to the pressure sensitive adhesive layer of the transparentsubstrate to cause the image to adhere to the transparent substrate,wetting the clay-coated image beAring surface with a liquid in which theclay coating is soluble, separating the image from the image bearingsurface by disjoining the image bearing surface from the pressuresensitive adhesive whereby the image is transferred to the transparentsubstrate, and coating the image-containing adhesive layer of thetransparent substrate with a transparent adhesive-free fixative, wherebya protected permanent image is provided in a condition suitable forconventional image projection.